Whois & RDAP Lookup
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RDAPIP Range175.159.158.0 - 175.159.191.255
Handle175.159.158.0 - 175.159.191.255
NameHKU-HK
TypeASSIGNED NON-PORTABLE
CountryHK
Registered2010-10-15 04:39 UTC
Updated2021-05-12 03:11 UTC
Admin ContactHKU Director of ITS
Email[email protected]
Phone+852 3549 5333
AddressThe University of Hong Kong, Pokfulam Road, Hong Kong
Tech ContactNetwork Technical Contact
Email[email protected]
Phone+852-3917-2496
AddressITS Office, 1/F, Library Building (Old Wing) The University of Hong Kong, Pokfulam Road, Hong Kong
Abuse Contact[email protected]
Statusactive
Registry RDAPhttps://rdap.apnic.net
Raw WHOIS response
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to '175.159.158.0 - 175.159.191.255'
% Abuse contact for '175.159.158.0 - 175.159.191.255' is '[email protected]'
inetnum: 175.159.158.0 - 175.159.191.255
netname: HKU-HK
descr: The University of Hong Kong
descr: Pokfulam
country: HK
admin-c: DITS-HKU-AP
tech-c: NTC5-AP
abuse-c: AJ481-AP
status: ASSIGNED NON-PORTABLE
remarks: -+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
remarks: Please send abuse reports to [email protected]
remarks: -+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
mnt-by: MAINT-JUCC-AP
mnt-lower: MAINT-HK-HKU
mnt-irt: IRT-JUCC-HK
last-modified: 2021-05-12T03:11:50Z
source: APNIC
irt: IRT-JUCC-HK
address: Joint Universities Computer Centre
address: c/o Information Technology Services
address: The University of Hong Kong
address: Pokfulam Road
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: GM806-AP
tech-c: DC1224-AP
tech-c: HTS5-AP
auth: # Filtered
remarks: [email protected] was validated on 2026-07-02
mnt-by: MAINT-JUCC-AP
last-modified: 2026-07-02T01:34:54Z
source: APNIC
role: ABUSE JUCCHK
country: ZZ
address: Joint Universities Computer Centre
address: c/o Information Technology Services
address: The University of Hong Kong
address: Pokfulam Road
phone: +000000000
e-mail: [email protected]
admin-c: GM806-AP
tech-c: DC1224-AP
tech-c: HTS5-AP
nic-hdl: AJ481-AP
remarks: Generated from irt object IRT-JUCC-HK
remarks: [email protected] was validated on 2026-07-02
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2026-07-02T01:35:12Z
source: APNIC
role: HKU Director of ITS
address: The University of Hong Kong
address: Pokfulam Road, Hong Kong
country: HK
phone: +852 3549 5333
e-mail: [email protected]
admin-c: DITS-HKU-AP
tech-c: NTC5-AP
nic-hdl: DITS-HKU-AP
mnt-by: MAINT-JUCC-AP
last-modified: 2011-07-19T10:44:46Z
source: APNIC
role: Network Technical Contact
address: ITS Office, 1/F, Library Building (Old Wing)
The University of Hong Kong,
Pokfulam Road,
Hong Kong
country: HK
phone: +852-3917-2496
e-mail: [email protected]
admin-c: DITS-HKU-AP
tech-c: NTC5-AP
nic-hdl: NTC5-AP
mnt-by: MAINT-HK-HKU
last-modified: 2020-05-25T06:43:54Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-JP1)
% Query time: 214 msec
% WHEN: Fri Aug 14 04:21:42 UTC 2026Raw RDAP JSON (registry) https://rdap.apnic.net
{
"cidr0_cidrs": [
{
"length": 23,
"v4prefix": "175.159.158.0"
},
{
"length": 19,
"v4prefix": "175.159.160.0"
}
],
"country": "HK",
"endAddress": "175.159.191.255",
"entities": [
{
"events": [
{
"eventAction": "registration",
"eventDate": "2009-09-14T02:14:22Z"
},
{
"eventAction": "last changed",
"eventDate": "2011-07-19T10:44:46Z"
}
],
"handle": "DITS-HKU-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/DITS-HKU-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/175.159.160.0/19"
}
],
"objectClassName": "entity",
"roles": [
"administrative"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"HKU Director of ITS"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "The University of Hong Kong\nPokfulam Road, Hong Kong"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+852 3549 5333"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2011-07-13T02:28:47Z"
},
{
"eventAction": "last changed",
"eventDate": "2020-05-25T06:43:54Z"
}
],
"handle": "NTC5-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/NTC5-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/175.159.160.0/19"
}
],
"objectClassName": "entity",
"roles": [
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Network Technical Contact"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "ITS Office, 1/F, Library Building (Old Wing) The University of Hong Kong, Pokfulam Road, Hong Kong"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+852-3917-2496"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2010-12-20T11:39:41Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-07-02T01:34:54Z"
}
],
"handle": "IRT-JUCC-HK",
"links": [
{
"href": "https://rdap.apnic.net/entity/IRT-JUCC-HK",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/175.159.160.0/19"
}
],
"objectClassName": "entity",
"remarks": [
{
"description": [
"[email protected] was validated on 2026-07-02"
],
"title": "remarks"
}
],
"roles": [
"abuse"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"IRT-JUCC-HK"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "Joint Universities Computer Centre\nc/o Information Technology Services\nThe University of Hong Kong\nPokfulam Road"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{
"pref": "1"
},
"text",
"[email protected]"
]
]
]
}
],
"events": [
{
"eventAction": "registration",
"eventDate": "2010-10-15T04:39:59Z"
},
{
"eventAction": "last changed",
"eventDate": "2021-05-12T03:11:50Z"
}
],
"handle": "175.159.158.0 - 175.159.191.255",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.apnic.net/ip/175.159.160.0/19",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/175.159.160.0/19"
}
],
"name": "HKU-HK",
"notices": [
{
"description": [
"Objects returned came from source",
"APNIC"
],
"title": "Source"
},
{
"description": [
"This is the APNIC WHOIS Database query service. The objects are in RDAP format."
],
"links": [
{
"href": "http://www.apnic.net/db/dbcopyright.html",
"rel": "terms-of-service",
"type": "text/html",
"value": "https://rdap.apnic.net/ip/175.159.160.0/19"
}
],
"title": "Terms and Conditions"
},
{
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
"rel": "inaccuracy-report",
"type": "text/html",
"value": "https://rdap.apnic.net/ip/175.159.160.0/19"
}
],
"title": "Whois Inaccuracy Reporting"
}
],
"objectClassName": "ip network",
"port43": "whois.apnic.net",
"rdapConformance": [
"history_version_0",
"nro_rdap_profile_0",
"cidr0",
"rdap_level_0"
],
"remarks": [
{
"description": [
"The University of Hong Kong",
"Pokfulam"
],
"title": "description"
},
{
"description": [
"-+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-",
"Please send abuse reports to [email protected]",
"-+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-"
],
"title": "remarks"
}
],
"startAddress": "175.159.158.0",
"status": [
"active"
],
"type": "ASSIGNED NON-PORTABLE"
}Frequently asked questions
What is WHOIS?
WHOIS is a public directory that answers "who is responsible for this?" for domains, IP ranges and ASNs. It lists registration dates, the registrar, nameservers and contacts.
What is RDAP, and how does it differ?
RDAP is the modern replacement for WHOIS. It returns the same records in a structured, consistent format. We query RDAP first and fall back to classic WHOIS text when a registry has not adopted it yet.
What is the difference between a registrar and a registrant?
The registrar is the company you register and manage a domain through, such as xTom or GoDaddy. The registrant is the person or organization that actually holds the domain.
What are nameservers?
Nameservers answer DNS questions for a domain and decide which IP addresses the name resolves to. They also show which DNS provider the domain uses.
What is DNSSEC?
DNSSEC adds cryptographic signatures to DNS answers so they cannot be quietly altered in transit. "Signed" means the domain has it enabled, "unsigned" means it does not.
Why is the contact information redacted?
Privacy laws such as GDPR require registrars to hide most personal details in public records. The abuse contact is usually still shown, so a domain or network can be reported when something goes wrong.